![]() Since the late 1870s, and until the introduction of the euro in 2001, no Greek coin had been minted with a denomination lower than 5 lepta. ![]() Its unofficial currency sign is Λ (lambda). In modern Greece, lepton (modern form: lepto, λεπτό) is the name of the 1⁄ 100 denomination of all the official currencies of the Greek state: the phoenix (1827–1832), the drachma (1832–2001) and the euro (2002–current) – the name is the Greek form of " cent". In the Hasmonean Kingdom the lepton was first minted under Alexander Jannaeus prior to 76 BCE. The coin in the lesson of the widow's mite ( Mark 12:41–44, Luke 21:1–4) is referred to as a lepton and Luke's Gospel also refers to the lepton or mite when stating that a person who does not make peace with his adversary in good time will be required to pay 'to the very last mite' before being released from prison. The word means "small" or "thin", and during Classical and Hellenistic times a lepton was always a small value coin, usually the smallest available denomination of another currency. The lepton, plural lepta ( Greek: λεπτόν, λεπτά), is the name of various fractional units of currency used in the Greek-speaking world from antiquity until today. The LHCb experiment is expected to start collecting new data next year following an upgrade to the detector.Ĭaption: “The LHCb experiment is one of the four large experiments at the Large Hadron Collider at CERN, situated underground on the Franco-Swiss border near Geneva.Reverse of a Greek 5 lepta coin (termed " obolos") of 1869. Looking towards the future, the LHCb experiment is well placed to clarify the potential existence of new physics effects hinted at in the decays presented today. The results presented today focus on lepton flavour universality, but the LHCb experiment also studies matter-antimatter differences. The experiment is designed to study decays of particles containing a beauty quark, a fundamental particle that has roughly four times the mass of the proton. The LHCb experiment is one of the four large experiments at the Large Hadron Collider at CERN, situated underground on the Franco-Swiss border near Geneva. The new results determine the ratio between the decay probabilities with greater precision than previous measurements and use all the data collected by the LHCb detector so far for the first time. Modified and corrected from en:Image:TauDecays.svg by en:User:JabberWok. Original uploaded to enwiki Mamodified and uploaded to commons February 29, 2008. Common possible decays of the Tau lepton by emission of a W boson. The deviation presented today is consistent with a pattern of anomalies measured in similar processes by LHCb and other experiments worldwide over the past decade. Feynman diagram of decay of tau lepton.svg. We will be excited to see if they strengthen the intriguing hints in the current results.” “More studies on related processes are under way using the existing LHCb data. “If a violation of lepton flavour universality were to be confirmed, it would require a new physical process, such as the existence of new fundamental particles or interactions,” says LHCb spokesperson Professor Chris Parkes from the University of Manchester and CERN. The new result indicates hints of a deviation from one: the statistical significance of the result is 3.1 standard deviations, which implies a probability of around 0.1% that the data is compatible with the Standard Model predictions. ![]() In the Standard Model of particle physics, the ratio should be very close to one. The Standard Model of particle physics predicts that decays involving different flavours of leptons, such as the one in the LHCb study, should occur with the same probability, a feature known as lepton flavour universality that is usually measured by the ratio between the decay probabilities. ![]() Empowering enterprises and start-ups with comprehensible location intelligence built on the foundation pillars of AI, ML, and Big Data. The electron and the muon, together with a third particle called the tau, are types of leptons and the difference between them is referred to as “flavours”. Location Intelligence and Analytics Solutions. The first decay involves the electron and the second the muon, another elementary particle similar to the electron but approximately 200 times heavier. The measurement made by the LHCb ( Large Hadron Collider beauty) collaboration, compares two types of decays of beauty quarks. The results focus on the potential violation of lepton flavour universality and were announced at the Moriond conference on electroweak interactions and unified theories, as well as at a seminar held online at CERN, the European Organization for Nuclear Research. A lepton is a class of elementary particle that includes electrons, specifically an elementary particle that is a. Today the LHCb experiment at CERN announced new results which, if confirmed, would suggest hints of a violation of the Standard Model of particle physics.
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